1. Chemical examination of plant insecticides

   • N. V. Subba Rao
   • T. R. Seshadri

   OriginalPaper Article: 465

2. Constitution of Populnin

   • P. Ramachandra Rao
   • T. R. Seshadri

   OriginalPaper Article: 456

3. Conditions of plane orbits in classical and relativistic fields

   • V. V. Narlikar
   • K. R. Karmarkar

   OriginalPaper Article: 451

4. Determination of magnesium and residual manganese in rocks and minerals with 8-hydroxy-quinoline

   • C. Karunakaran
   • K. Neelakantam

   OriginalPaper Article: 448

5. Some congruence properties of the ϕ-function

   • P. Kesava Menon

   OriginalPaper Article: 443

6. A congruence property of τ(n)

   • Hansraj Gupta

   BriefCommunication Article: 441

7. Umbilical projection

   • Sahib Ram Mandan

   OriginalPaper Article: 433

8. Determination of the magneto-optic anomaly of some glasses

   • S. Ramaseshan

   OriginalPaper Article: 426

9. On fluctuations of pressure and temperature in the atmosphere

   • R. Ananthakrishnan

   OriginalPaper Article: 393

10. Erratum to: On fluctuations of pressure and temperature in the atmosphere

    • R. Ananthakrishnan

    Erratum Article: I